Have you checked whether the clutch is getting the movement of the
clutch pedal? Linkage could be bad or, if hydraulic, no fluid etc.
If you see movement at the bell housing the clutch is locked in its
Cheap and dirty - put the car into 1st or reverse - whichever direction
the car can be moved - step on the clutch, step on the brakes and hit
the starter. It may pop free. Be careful.
If it doesn't release you probably have to remove the transmission to
get to the clutch.